Pound'er, n.

n. 1. One who, or that which, pounds.

2. An instrument used for pounding; a pestle.
3. A person or thing denominated from a certain number of pounds; as, a cannon is called a twelve-pounder; a person of ten pounds annual income is called a ten-pounder. Johnson.
4. A large, heavy pear. Dryden.

Unlike are bergamots and pounder pears. Dryden.